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  <title>Document</title>
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  <script>
        let age=prompt("你现在多少岁了：")
        let agea=parseInt(age)+5
        alert("据我估计，"+name+",五年后，你可能"+agea+"岁了")
        console.log("据我估计，"+name+",五年后，你可能"+agea+"岁了")
  </script>
</body>
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